@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public class BatchGetItemRequest extends AmazonWebServiceRequest implements Serializable, Cloneable
Represents the input of a BatchGetItem
operation.
NOOP
Constructor and Description |
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BatchGetItemRequest()
Default constructor for BatchGetItemRequest object.
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BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems)
Constructs a new BatchGetItemRequest object.
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BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems,
ReturnConsumedCapacity returnConsumedCapacity)
Constructs a new BatchGetItemRequest object.
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BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems,
String returnConsumedCapacity)
Constructs a new BatchGetItemRequest object.
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Modifier and Type | Method and Description |
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BatchGetItemRequest |
addRequestItemsEntry(String key,
KeysAndAttributes value) |
BatchGetItemRequest |
clearRequestItemsEntries()
Removes all the entries added into RequestItems.
|
BatchGetItemRequest |
clone() |
boolean |
equals(Object obj) |
Map<String,KeysAndAttributes> |
getRequestItems()
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table.
|
String |
getReturnConsumedCapacity() |
int |
hashCode() |
void |
setRequestItems(Map<String,KeysAndAttributes> requestItems)
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table.
|
void |
setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) |
void |
setReturnConsumedCapacity(String returnConsumedCapacity) |
String |
toString()
Returns a string representation of this object; useful for testing and debugging.
|
BatchGetItemRequest |
withRequestItems(Map<String,KeysAndAttributes> requestItems)
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table.
|
BatchGetItemRequest |
withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity) |
BatchGetItemRequest |
withReturnConsumedCapacity(String returnConsumedCapacity) |
addHandlerContext, copyBaseTo, getCloneRoot, getCloneSource, getCustomQueryParameters, getCustomRequestHeaders, getGeneralProgressListener, getHandlerContext, getReadLimit, getRequestClientOptions, getRequestCredentials, getRequestCredentialsProvider, getRequestMetricCollector, getSdkClientExecutionTimeout, getSdkRequestTimeout, putCustomQueryParameter, putCustomRequestHeader, setGeneralProgressListener, setRequestCredentials, setRequestCredentialsProvider, setRequestMetricCollector, setSdkClientExecutionTimeout, setSdkRequestTimeout, withGeneralProgressListener, withRequestCredentialsProvider, withRequestMetricCollector, withSdkClientExecutionTimeout, withSdkRequestTimeout
public BatchGetItemRequest()
public BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems)
requestItems
- A map of one or more table names and, for each table, a map that describes one or more items to retrieve
from that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
(For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
public BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems, String returnConsumedCapacity)
requestItems
- A map of one or more table names and, for each table, a map that describes one or more items to retrieve
from that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
(For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
returnConsumedCapacity
- public BatchGetItemRequest(Map<String,KeysAndAttributes> requestItems, ReturnConsumedCapacity returnConsumedCapacity)
requestItems
- A map of one or more table names and, for each table, a map that describes one or more items to retrieve
from that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
(For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
returnConsumedCapacity
- public Map<String,KeysAndAttributes> getRequestItems()
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
the complete list of reserved words, see Reserved Words in
the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For each
primary key, you must provide all of the key attributes. For example, with a simple primary key, you only
need to provide the partition key value. For a composite key, you must provide both the partition key
value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the table.
These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must
be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead. For
more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an
expression. (For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
public void setRequestItems(Map<String,KeysAndAttributes> requestItems)
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
the complete list of reserved words, see Reserved Words in
the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For each
primary key, you must provide all of the key attributes. For example, with a simple primary key, you only
need to provide the partition key value. For a composite key, you must provide both the partition key
value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the table.
These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must
be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead. For
more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
requestItems
- A map of one or more table names and, for each table, a map that describes one or more items to retrieve
from that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
(For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
public BatchGetItemRequest withRequestItems(Map<String,KeysAndAttributes> requestItems)
A map of one or more table names and, for each table, a map that describes one or more items to retrieve from
that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For
the complete list of reserved words, see Reserved Words in
the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For each
primary key, you must provide all of the key attributes. For example, with a simple primary key, you only
need to provide the partition key value. For a composite key, you must provide both the partition key
value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the table.
These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must
be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead. For
more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
requestItems
- A map of one or more table names and, for each table, a map that describes one or more items to retrieve
from that table. Each table name can be used only once per BatchGetItem
request.
Each element in the map of items to retrieve consists of the following:
ConsistentRead
- If true
, a strongly consistent read is used; if
false
(the default), an eventually consistent read is used.
ExpressionAttributeNames
- One or more substitution tokens for attribute names in the
ProjectionExpression
parameter. The following are some use cases for using
ExpressionAttributeNames
:
To access an attribute whose name conflicts with a DynamoDB reserved word.
To create a placeholder for repeating occurrences of an attribute name in an expression.
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression.
(For the complete list of reserved words, see Reserved
Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the
following for ExpressionAttributeNames
:
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
Keys
- An array of primary key attribute values that define specific items in the table. For
each primary key, you must provide all of the key attributes. For example, with a simple primary
key, you only need to provide the partition key value. For a composite key, you must provide both
the partition key value and the sort key value.
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the
table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
AttributesToGet
- This is a legacy parameter. Use ProjectionExpression
instead.
For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
public BatchGetItemRequest addRequestItemsEntry(String key, KeysAndAttributes value)
public BatchGetItemRequest clearRequestItemsEntries()
public void setReturnConsumedCapacity(String returnConsumedCapacity)
returnConsumedCapacity
- ReturnConsumedCapacity
public String getReturnConsumedCapacity()
ReturnConsumedCapacity
public BatchGetItemRequest withReturnConsumedCapacity(String returnConsumedCapacity)
returnConsumedCapacity
- ReturnConsumedCapacity
public void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
returnConsumedCapacity
- ReturnConsumedCapacity
public BatchGetItemRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
returnConsumedCapacity
- ReturnConsumedCapacity
public String toString()
toString
in class Object
Object.toString()
public BatchGetItemRequest clone()
clone
in class AmazonWebServiceRequest
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